Steve Rose: From the micro-solidarity of Two Days, One Night, via the political corruption of On the Waterfront and everything Ken Loach has ever made to new feelgood mining drama Pride – labour rights are a surprisingly cinematic topic

There's been talk of Jimmy's Hall – which premieres at Cannes today – being Ken Loach's last feature. But a visit to its Irish set finds the 77-year-old director on fighting form despite his failing eyesight